Mixtures of helium and oxygen are used in scuba diving tanks to help prevent "the bends". For a particular dive, 35.0 L of He at 20.5 °C and 1.50 atm and 15.0 L of O2 at 20.5 °C and 1.50 atm were pumped into a tank with a volume of 7.50 L. What is the total pressure (in atm) in the tank at 20.5 °C? a. 3.00 atm
b. 1.50 atm
c. 20.5 atm
d. 7.50 atm

Ase your answer to this question on the information below.hydrocarbons and fissionable nuclei are among the sources used for the production of energy in the united states. a chemical reaction produces much less energy than a nuclear reaction per mole of reactant.the balanced chemical equation below represents the reaction of one molecule of a hydrocarbon with two molecules of oxygen.chemical equation: ch4 + 2o2 → co2 + 2h2o + 1.48 × 10−18 jthe nuclear equation below represents one of the many possible reactions for one fissionable nucleus. in this equation, x represents a missing product.nuclear equation: write an isotopic notation for the missing product represented by x in the nuclear equation.

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?